what the hell is a nug i keep hearin people say it but i dunno what it means. im good on most other words its just this one i got trouble with.
Other causes of corneal ulcers include: Abrasions or burns to the cornea caused by injury to the eye. Scratches, scrapes and cuts from fingernails, paper cuts, makeup brushes and tree branches can become infected by bacteria and lead to corneal ulcers. Burns caused by caustic chemicals found in the workplace and at home can cause corneal ulcers.
1 Bacterial infections cause corneal ulcers and are common in people who wear contact lenses. 2  Viral infections are also possible causes of corneal ulcers. 3  Such viruses include the herpes simplex virus (the virus that causes cold sores) or the varicella zoster virus (the virus that causes chickenpox and shingles).